The color yellow is disallowed in match, and Super Tails and Knuckles have invincibility stars going around them as well as being yellow. Super Sonic doesn't have the stars, but he has is own sprite and it's pretty obvious.

Also, when someone goes Super, it puts a gigantic CECHO on the screen saying that it happened, so it's exceedingly obvious when someone went super. Also, the tab screen shows the emeralds each player has, and when someone is super it'll show their emeralds as flashing.

It's generally very obvious when someone is super and you need to watch out.

A day I had hosted a server with Water Plant Zone in match mode, two players started to roleplay asking each other where's the King Room or something... eh. I had to ask one of them to shoot someone in 1 minute or he'd be banned from my server.

I hope there will be an option so you can enable/disable chaos emeralds by choice via match/ctf settings like with certain monitors, etc rather than play with them all the time. Sure it's cool and all but I'll never know if there will be a time or two when I might want to disable it. Or if some guy doesn't focus on the game but only on emerald abuse. >_> Flexibility is everyone's friend.

There are no bots in SRB2ME. The bots in SRB2JTE, while cool, were rather stupid and incapable of navigating even simple areas. The match stages in SRB2ME are far more complicated than the ones in 1.09.4, so the bots would simply find themselves completely confused.

Well, if they did that they'd be great. The issue is that if you go around a wall or are behind several layers of stage architecture, they'll just run against the wall because they have no idea how to reach you.